Game changes:

The FOV was decreased to 90, the same as the camera FOV was too;
Batteries last energy a matter of seconds longer than before;
Miles walk and run a bit faster;
Miles makes less noise;
Miles is slower in water;
Now we can do BHOPS in water;
The fire in the Male Ward cafeteria does more damage and has a longer reach;
Miles is easilly spotted by enemies;
Now we can see better when you're out of batteries;
Now we can do BHOPS easier enough than before.

Enemies changes:
Chris is faster;
Chris is easier to dodge;
Chris can spot and hear you better than other enemies;
Chris has more chance to find a hidden player;
The generic patiens has a larger range and is harder to dodge;
The enemies in Male Ward chase is faster and harder to dodge. It makes the Male Ward chase THE HARDER part of the whole game;
Trager is the fastest enemy in the whole game;
Trager has a larger range than other enemies;
Trager spot and hear like Chris Walker;
Now, Trager is harder to dodge, 90% of his attacks will be grabs;
The Wallrider detects and passes doors faster than before;
Wallrider now is the faster enemy in game, with 800-900 of velocity (Miles has 410);
The Wallrider has a shorter range than before;
The Wallrider sometimes won't lose you for a while if you don't get COMPLITELY out of his vision.

Graphics Changes:
Max quality textures;
Max quality shadows;
Better shadows definition;
The 3D models were set to the best possible modeling quality;
Shadows Filter Quality Maximized;
Skeletals meshes maximized;
Now MSAA was activated and maximized;
FXAA was activated and maximized;
Anisotrophy Filter was set on 16X;
Shadow filter radius maximized;
Reflexions were MAXIMIZED (It's actually awesome);
We have better particles with great distortions;
Maximized ambient occlusion;
The fog now has a sharper, stronger impression, which removes the shadowy flaws from some parts of the game;
The light effects is better than last version.;
The fire in Male Ward cafeteria is better and has better distortion effects;
The water looks clearer and more vibrant;
Ambient occlusion with night vision is clearly better, along with shadows and distortion effects;